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| author | Andy Lutomirski <[email protected]> | 2019-05-14 20:24:39 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-05-16 07:05:11 +0000 |
| commit | 88640e1dcd089879530a49a8d212d1814678dfe7 (patch) | |
| tree | b3bfb6be2d0f41cef5c8d3b7797f55e70e510c61 /drivers/fpga/fpga-bridge.c | |
| parent | Merge branch 'linus' into x86/urgent, to pick up dependent changes (diff) | |
| download | kernel-88640e1dcd089879530a49a8d212d1814678dfe7.tar.gz kernel-88640e1dcd089879530a49a8d212d1814678dfe7.zip | |
x86/speculation/mds: Revert CPU buffer clear on double fault exit
The double fault ESPFIX path doesn't return to user mode at all --
it returns back to the kernel by simulating a #GP fault.
prepare_exit_to_usermode() will run on the way out of
general_protection before running user code.
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jon Masters <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Fixes: 04dcbdb80578 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/ac97612445c0a44ee10374f6ea79c222fe22a5c4.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions